sys/bus/cam/scsi/scsi_sg.h

   1 /*
   2  * Structures and definitions for SCSI commands to the SG passthrough device.
   3  *
   4  * $FreeBSD: src/sys/cam/scsi/scsi_sg.h,v 1.2 2007/04/10 20:03:42 scottl Exp $
   5  */
   6
   7 #ifndef _SCSI_SG_H
   8 #define _SCSI_SG_H
   9
  10 #include <sys/ioccom.h>
  11
  12 #define SGIOC   '"'
  13 #define SG_SET_TIMEOUT          _IO(SGIOC, 0x01)
  14 #define SG_GET_TIMEOUT          _IO(SGIOC, 0x02)
  15 #define SG_EMULATED_HOST        _IO(SGIOC, 0x03)
  16 #define SG_SET_TRANSFORM        _IO(SGIOC, 0x04)
  17 #define SG_GET_TRANSFORM        _IO(SGIOC, 0x05)
  18 #define SG_GET_COMMAND_Q        _IO(SGIOC, 0x70)
  19 #define SG_SET_COMMAND_Q        _IO(SGIOC, 0x71)
  20 #define SG_GET_RESERVED_SIZE    _IO(SGIOC, 0x72)
  21 #define SG_SET_RESERVED_SIZE    _IO(SGIOC, 0x75)
  22 #define SG_GET_SCSI_ID          _IO(SGIOC, 0x76)
  23 #define SG_SET_FORCE_LOW_DMA    _IO(SGIOC, 0x79)
  24 #define SG_GET_LOW_DMA          _IO(SGIOC, 0x7a)
  25 #define SG_SET_FORCE_PACK_ID    _IO(SGIOC, 0x7b)
  26 #define SG_GET_PACK_ID          _IO(SGIOC, 0x7c)
  27 #define SG_GET_NUM_WAITING      _IO(SGIOC, 0x7d)
  28 #define SG_SET_DEBUG            _IO(SGIOC, 0x7e)
  29 #define SG_GET_SG_TABLESIZE     _IO(SGIOC, 0x7f)
  30 #define SG_GET_VERSION_NUM      _IO(SGIOC, 0x82)
  31 #define SG_NEXT_CMD_LEN         _IO(SGIOC, 0x83)
  32 #define SG_SCSI_RESET           _IO(SGIOC, 0x84)
  33 #define SG_IO                   _IO(SGIOC, 0x85)
  34 #define SG_GET_REQUEST_TABLE    _IO(SGIOC, 0x86)
  35 #define SG_SET_KEEP_ORPHAN      _IO(SGIOC, 0x87)
  36 #define SG_GET_KEEP_ORPHAN      _IO(SGIOC, 0x88)
  37 #define SG_GET_ACCESS_COUNT     _IO(SGIOC, 0x89)
  38
  39 struct sg_io_hdr {
  40         int             interface_id;
  41         int             dxfer_direction;
  42         u_char          cmd_len;
  43         u_char          mx_sb_len;
  44         u_short         iovec_count;
  45         u_int           dxfer_len;
  46         void            *dxferp;
  47         u_char          *cmdp;
  48         u_char          *sbp;
  49         u_int           timeout;
  50         u_int           flags;
  51         int             pack_id;
  52         void            *usr_ptr;
  53         u_char          status;
  54         u_char          masked_status;
  55         u_char          msg_status;
  56         u_char          sb_len_wr;
  57         u_short         host_status;
  58         u_short         driver_status;
  59         int             resid;
  60         u_int           duration;
  61         u_int           info;
  62 };
  63
  64 #define SG_DXFER_NONE           -1
  65 #define SG_DXFER_TO_DEV         -2
  66 #define SG_DXFER_FROM_DEV       -3
  67 #define SG_DXFER_TO_FROM_DEV    -4
  68 #define SG_DXFER_UNKNOWN        -5
  69
  70 #define SG_MAX_SENSE            16
  71
  72 struct sg_header {
  73         int             pack_len;
  74         int             reply_len;
  75         int             pack_id;
  76         int             result;
  77         u_int           twelve_byte:1;
  78         u_int           target_status:5;
  79         u_int           host_status:8;
  80         u_int           driver_status:8;
  81         u_int           other_flags:10;
  82         u_char          sense_buffer[SG_MAX_SENSE];
  83 };
  84
  85 struct sg_scsi_id {
  86         int             host_no;
  87         int             channel;
  88         int             scsi_id;
  89         int             lun;
  90         int             scsi_type;
  91         short           h_cmd_per_lun;
  92         short           d_queue_depth;
  93         int             unused[2];
  94 };
  95
  96 struct scsi_idlun {
  97         uint32_t        dev_id;
  98         uint32_t        host_unique_id;
  99 };
 100
 101 /*
 102  * Host codes
 103  */
 104 #define DID_OK          0x00    /* OK */
 105 #define DID_NO_CONNECT  0x01    /* timeout during connect */
 106 #define DID_BUS_BUSY    0x02    /* timeout during command */
 107 #define DID_TIME_OUT    0x03    /* other timeout */
 108 #define DID_BAD_TARGET  0x04    /* bad target */
 109 #define DID_ABORT       0x05    /* abort */
 110 #define DID_PARITY      0x06    /* parity error */
 111 #define DID_ERROR       0x07    /* internal error */
 112 #define DID_RESET       0x08    /* reset by somebody */
 113 #define DID_BAD_INTR    0x09    /* unexpected interrupt */
 114 #define DID_PASSTHROUGH 0x0a    /* passthrough */
 115 #define DID_SOFT_ERROR  0x0b    /* low driver wants retry */
 116 #define DID_IMM_RETRY   0x0c    /* retry without decreasing retrycnt */
 117
 118 /*
 119  * Driver codes
 120  */
 121 #define DRIVER_OK       0x00
 122 #define DRIVER_BUSY     0x01
 123 #define DRIVER_SOFT     0x02
 124 #define DRIVER_MEDIA    0x03
 125 #define DRIVER_ERROR    0x04
 126
 127 #define DRIVER_INVALID  0x05
 128 #define DRIVER_TIMEOUT  0x06
 129 #define DRIVER_HARD     0x07
 130 #define DRIVER_SENSE    0x08
 131
 132 #define SUGGEST_RETRY   0x10
 133 #define SUGGEST_ABORT   0x20
 134 #define SUGGEST_REMAP   0x30
 135 #define SUGGEST_DIE     0x40
 136 #define SUGGEST_SENSE   0x80
 137 #define SUGGEST_IS_OK   0xff
 138
 139 #define DRIVER_MASK     0x0f
 140 #define SUGGEST_MASK    0xf0
 141
 142 /* Other definitions */
 143 /* HZ isn't always available, so simulate it */
 144 #define SG_DEFAULT_HZ           1000
 145 #define SG_DEFAULT_TIMEOUT      (60*SG_DEFAULT_HZ)
 146
 147 #endif /* !_SCSI_SG_H */